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Older Revision of Craftsman V20 Power Tools Battery Interface

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Craftsman V20 Power Tools Battery Interface

The Craftsman V20 power tool uses 20-volt lithium ion (Li-Ion) battery packs. The battery packs contains five 3.6v lithium ion power cells that provides 18v and peaks at 20v when charged. Craftsman's cordless power tool web sites states: "*20V MAX battery, maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18."

The photo below shows the pin-out on the battery:

• B+ stands for battery positive terminal.
• NTC stands for Negative Temperature Coefficient. This connector most likely connects to a NTC thermistor temperature sensor for battery safety.
• ID. It's unknown what Craftsman power tools use the ID connector for. If you have an idea, please share it with us.
• B- stands for battery negative terminal.

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